Hey Ted,
I have had this problem (over saturated images on the web), so I'll ask you two questions...
1. What is your color space in camera? aRGB or sRGB?
2. How are you saving your pictures for posting to the web?
I have seen where some people (read...me) have set their in camera color space to aRGB (and then process in PSCS2 with aRGB), but then forget to un-check the "ICC Profile" check box when saving the image for the web. This keeps the image in aRGB, and web browsers don't quite know how to handle it, so they all look oversaturated. Make sure, if you're working in aRGB, that the "ICC Profile" is *NOT* checked when you save, so that PSCS2 will convert it to sRGB.
JMHO, of course...